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Finding the Fourth Proportional to 186,626.96, 279,988.70 and 53,516.96

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Solution

The fourth proportional to 186,626.96, 279,988.70 and 53,516.96 is: 80,289.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,626.96 : 279,988.70 = 53,516.96 : x
  2. Step 2: Convert to fraction form
    186,626.96/279,988.70 = 53,516.96/x
  3. Step 3: Cross multiply
    186,626.96x = 279,988.70 × 53,516.96
  4. Step 4: Simplify right side
    186,626.96x = 14,984,142,390.82
  5. Step 5: Solve for x
    x = 14,984,142,390.82/186,626.96
  6. Step 6: Final answer
    x = 80,289.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.